[2005] Naming A Class Instance At RunTime?

Feb 9, 2009

I have a little banking console app for a class project. I've created a class (Account). What I want to do is name the instance of the class based on text input:

Dim strFoo As String
strFoo = Console.Readline
Dim strFoo as New Account

Obviously this won't work because strFoo is a String.

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.net - Create A Variable Of An Instance Object Of A Class At Runtime?

Sep 29, 2011

I am trying to create new variables inside a class after creating its object at runtime. The problem is that I don't know the variable names or the value beforehand so I have to create the new variables at runtime.

[Code]...

This is a more elaborate explanation of my code. If you observe that in the Eval function I have tried to evaluate Fval(abc). Now the object array abc is not declared in the Test class because it existence is not known beforehand. What I want to do is create an object array abc of length 2 and populate it with some values and when Fval(abc) is called then then the value of index 1 should be the return value of Eval fucntion.

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.NET : Runtime Is Initializing A Variable To An Instance Of The Wrong Class?

Jul 26, 2010

I've got some code that looks like this:

If ediFileGroupAbbr = "NIPDSINV" OrElse ediFileGroupAbbr = "WWPDSINV" Then
Dim p As New PrivateBillingAdapter_ForN(ediFileGroupAbbr, businessLocationID, mode, EDIJobItemLogID, BusinessUnitID)
Return p.ProcessEDI(True, False)
ElseIf ediFileGroupAbbr = "FOPDSINV" Then

[code]...

to which I'm passing in a value of ediFileGroupAbbr = "FOPDSINV". But the code is executing as if it's dropping into the third condition (p is a PrivateBillingAdapter). So I've stepped into the code and, sure enough, it drops into the second condition. BUT, if I step into the execution of the constructor, the debugger jumps to an odd place in the code - sort of the middle of a method and not on any actual line of code.A couple clicks and it hops back out of the constructor, still in the second block of code. But if I mouse over the variable p to see it's type, boom, its a PrivateBillingAdapter (from the third block).Like I said, something is clearly wrong but I don't know what. I've tried rebuilding several times but with no new results.This is VS2003, framework 1.1 with VB.NET.

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Dynamic Variable Naming At Runtime?

Oct 30, 2009

I am trying to create a number of objects depending on the width of a row of an array, is there a way I can change the name of the variable being Dim 'd as I don't know how wide the array will be.

I have been trying something along the lines of:

pseudocode
For x as integer = 0 to UBound(MyArray,2)
Dim Object & CStr(x) As Object Type
Next

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VS 2010 DataGridView Naming In Runtime?

Jan 7, 2011

I'm creating an application that allows the user to create their own queries based on criteria in various list boxes and my idea was to produce the results of the SQL in a "new" DGV, which in turn will be created in a "new" TabPage in a separate form . Each time the user runs a query a new DGV and TabPage is created. I've named each "new" DGV based on a user textbox so each "new" DGV will be named differently. The problem is how do I reference each new DGV? At the moment I get-"the value of type 'Syst.cannot be converted to string"It allows me to name the DGV with a string, but not reference it!

Any ideas how I reference a DGV when its created in runtime.

[Code]...

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VS 2010 - Naming Document Using Multiple Input Text Instance?

Jul 22, 2010

I am using this:
Dim oFile As System.IO.File
Dim oWrite As System.IO.StreamWriter
oWrite = oFile.CreateText("e: est.txt")
oWrite.WriteLine("TEST")
oWrite.Close()
Which works, but I would like to have it so instead of creating test.txt it names the document using multiple input text instance.

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Exposing A Class Through Another Class With Consistent Naming In .net

Jul 15, 2010

In the pseudo code below, if I have two classes and I want one class to be initialized in the other class without the name having to be different, how would I accomplish this?

'==Car.vb==
Public Class Car
Public Model as New Car.Model()

[Code]...

Is there a better way of doing this so I get the result I want for my usage code?

'==ASPX page==
Dim c as New Car()
c.Model = Car.Model.Types.BMW

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Naming For Namespace / Class And Variables

Jul 7, 2009

In the code below, the namespace is called "Navigation" which I think is correct. Then I have a class called "Heading", which by definition is the direction a person/vehicle is truly pointing towards. I think that is also named correctly. In the code below, I have four things I have named:
_WhatToName1, WhatToName2, WhatToName3, and WhatToName4.
The value that gets passed in and stored is a double between 0 and 360 -- essentially the degree value from a circle. For WhatToName3 and WhatToName4, I have seen a lot of places that just use "value" as the name. Is that standard?

Namespace Navigation
Public Class Heading
Private _WhatToName1 As Double
Public Sub New(ByVal WhatToName3 As Double)
Me.WhatToName2 = WhatToName3
[Code] .....

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Class Private/Public Naming Conventions?

Mar 25, 2011

I'm relatively new to .NET and am wondering how people handle naming their private variables and the public properties that access them. Like if you want to be able to just read it, but not write to it.

[Code]...

So far I've taken to putting a 'l' (for local) in front of the all the private variables so as to be able to use the full name for the property. Is there a better way around this, or do you just always have to have different names for private variable/public properties? If so, what sort of conventions do people use?

Its not a huge deal, its just a minor annoyance and I was wondering if I was missing something.

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Naming Convention For Variables In Class Constructor

Nov 26, 2010

In the past when I have written classes and constructors, I named the variables in the constructor parameter something different than what would have been stored in the actual class itself.What I do now is name them the same, and reference the internal variables with Me.varname.Here is a class I just started building.Is my naming convention incorrect? [code]

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Write A Class Where A Property Can Be Accessed Without Naming It?

Mar 29, 2010

[code].....

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Unable To Use An Instance Of The Nested Class Through A Public Variable Of The Parent Class?

Jun 7, 2012

I want to created a nested class that can only be visible to and instantiated from the parent class.But I also want to be able to use an instance of the nested class through a public variable of the parent class.I tried making the nested class private, or making the nested class' constructor private, but it won't compile.Is it possible to do this in .NET?

[Code]...

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How To Assign A Different Reference To A Class Instance From Inside The Class Code

Jan 18, 2011

my proble is the following: I have a class MyClass and another class Modifier, which has a method ModifyMyClass(ByRef mc as MyClass) that receives a MyClass instance as ByRef parameter to modify it. A smell of the code is:

[Code]...

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Class With Class Properties: AObject Reference Not Set To An Instance?

Aug 19, 2009

I have a class in which some of the fields are also classes.I can put values in the "normal" properties, but in the others when o try to assign values it gives the: "Object reference not set to an instance of an object"But the code compiles fine.

dados_Defenicao = New ServiceReference1.draftClaimEntryDefinition
dados_Defenicao.arCode = "123"
dados_Defenicao.claimMarket.warrantyType = "w" - Here it gives the error

How can i fix this ?

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Class With Class Properties: Object Reference Not Set To An Instance

Aug 19, 2009

I have a class in which some of the fields are also classes.

I can put values in the "normal" properties, but in the others when o try to assign values it gives the: "Object reference not set to an instance of an object"

But the code compiles fine.

dados_Defenicao = New ServiceReference1.draftClaimEntryDefinition
dados_Defenicao.arCode = "123"
dados_Defenicao.claimMarket.warrantyType = "w" - Here it gives the error

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Declare A RANDOM Class Instance At CLASS Level?

May 6, 2010

If you run this code you will see that the 500 PictureBoxes that are added ( this is easier to show than adding pixels as a pixel is only a single point ) fall mainly on the diagonal.With regard the RANDOM class, why should this be like this when the bounds of the instances are? >>

p.Location = New Point(x.Next(0, Me.Width + 1
), y.Next(0, Me.Height + 1 ))
as in this code.>>

[code].....-2138214fdeb4

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Creating An Instance Of A Class From A Class Library?

May 18, 2010

I've createda vb.net class library where I've defined a number of small classes... nothing complicated, just working with strings, sending emails, etc.In another project, I reference the class library and I'm seemingly able to create an instance ofone of tclasses - intellisense shows me all of the plic properties, methods, etc... all looks perfect. No compile errors at all, nothing b gumdropsand lollipops.When I run the app I'm working on that references the class library, it fails at the point where I'm creating an instance of the class and gives me a vague exception, "System.TypeLoadException".

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Define A Class Such That There Can Be Only A Single Instance Of That Class?

Jan 20, 2012

Is there a way to define a class such that there can be only a single instance of that class?

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Get A Reference To The Class That Creates An Instance Of Another Class?

May 20, 2010

I need to create a new instance of a class that needs a member of the calling class. But i can't pass a reference to the calling class through the constructor.The solution i am looking for is something like this:

Public Class ChildClass
Public Sub New(args)
_MyMember = GetMemberFromCallingClass()

[code]....

I want this to work without having to manually pass any references or variables from the calling class to the new instance of ChildClass.

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VS 2010 Class Create Another Instance Of The Class Itself?

Jun 11, 2012

I want to create a class that will "search" for something. Basically I load up the "search item" when the class is created and inside the class is logic to do the "search". The result of this logic will be more "searches" that I want to start. How can I have the logic in the class create another instance of the class itself?

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VS 2005 Mobile Application VB 2005 - Detect If An Instance Of App Is Already Running?

Feb 8, 2012

I am in process to develop an application for Windows Mobile 6.5 using Visual Basic 2005 and .NET Compact Framework. My problem is that I want to know if an instance of my application is already running and, in that case, I want to jump directly to that instance, without starting another one. I tried several solutions found on the internet but I think there are solution for desktop applications not for mobile applications because I have a lot of errors.

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Get Class Name Of A Instance?

Aug 20, 2010

Is there a way to get the instance's class name with VB.NET?

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Add Instance Of Class That Contain Data

Jul 16, 2009

I have been asked by a code snippet to add the instance of class that contains data i want to add to an XML file, the only trouble is i am not sure what an instance of class is. Is it something that looks like this: [Code]

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Cannot Create An Instance Of My Class

Feb 24, 2010

I am working on an ASP.Net 3.5 solution that I did not originally build. I added a class file named Incident.vb to the App_Code folder like I always do.But in my code behind of a web page, I usually create an instance of a class like:

Dim oIncident as New Incident

But after I type "New", normally I would see my class file he intellisense but I do not. So it does not seem to be able to find Incident.vb. I have not seen this behavior before. Trust me, my class is correct. I have created many class files like this.[code]...

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Cannot Seem To Get Sub From An Instance Of Class Once Instantiated?

Sep 11, 2009

I think I just need a push in the right direction. I cannot seem to get my sub from an instance of my class, once instantiated, to run when I click on the button. My Code in the class is

When I click this:Private Sub btnBark_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnBark.Click
mydawg.bark()
End Sub

[Code]...

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Class Function Without Instance?

Mar 24, 2012

I have a Class, which I create an instance of in order to use, however I have a couple of functions (which don't really relate to the instance data) which I want to use when an instance hasn't been created.

Visual Basic .NET (2010)

Example of what I'm trying to do:

' Log a user into the system (this works)
Dim hedwig As New CustomSecurity
hedwig.Login("username", "password")

[Code].....

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Destroy Instance Of .net Class?

Jun 6, 2011

this used to be so easy in C++ and VB6 I am dynamically creating multiple instances of a fairly simple class, tracking them via the Collections class in vb.net. I loop through the collection if I need to get to a particular instance to set some property, for example. Everything is fine, and works ok until I try to destroy the instances that I created (largely because I am probably not doing it right). What I am doing setting the instance to "nothing". That is, here is the portion of the code:

[Code]...

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How To Make New Instance Of Class

Feb 1, 2011

I have a class "Character" that holds character stats and skills. I make a new instance of it "MyCharacter". The problem is I would like to use it like this.
MyCharacter.stat.charactername ="whatever"
Where stat is another class within Character or
MyCharacter.skill.lockpick=10, b
But I can't seem to do it.

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How To Refrence A Instance Of A Class

May 10, 2009

Lets Say you have a Class

Public Class ExampleClass
Private _Name As String = "Unnamed"
Private _Value As Object = Nothing

[code].....

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List Contains A Particular Instance Of The Class?

Feb 17, 2012

In a program that I'm putting together, I have a small class and in the program, I add instances of that class to a List(Of [that class]).Later in the program I test whether or not that list contains a particular instance of the class, but it fails to return true when I've proven that it's in there. I've since set up an iteration routine where it finds it, but it has me puzzled why the ".Contains" will not locate it.

My question is simple: When I have a List where I add an instance of a structure or class, does it not actually examine the contents of the structure or class inside it?

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